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Ford E-150 blower resistor pack

My blower only works on the lowest speed setting...which from my reading would mean that either the switch or the blower resistor pack is bad.

Ive been reading on the net and I see more hits about blower resistor packs being bad than selector switches being bad so Im wanting to hunt down the resistor pack and check it.

I know its supposed to be somewhere in the ducting off the blower but was hoping someone could help me pinpoint it.

I did see a wiring harness going to the blower housing itself... so Im thinking it could be it... I just hate taking things apart on a company van but I gotta get this fixed before long or I wont have a defrost.

Also, I keep reading on the net about fans being stuck on high when the resistor pack goes bad but my fan is stuck on low...

Just throwing this out there in case anyone else with an older Ford has run into this problem... No biggie.... I'll just start ripping things apart in the morning....lol

same prob....

My blower only works on the lowest speed setting...which from my reading would mean that either the switch or the blower resistor pack is bad.

Ive been reading on the net and I see more hits about blower resistor packs being bad than selector switches being bad so Im wanting to hunt down the resistor pack and check it.

I know its supposed to be somewhere in the ducting off the blower but was hoping someone could help me pinpoint it.

I did see a wiring harness going to the blower housing itself... so Im thinking it could be it... I just hate taking things apart on a company van but I gotta get this fixed before long or I wont have a defrost.

Also, I keep reading on the net about fans being stuck on high when the resistor pack goes bad but my fan is stuck on low...

Just throwing this out there in case anyone else with an older Ford has run into this problem... No biggie.... I'll just start ripping things apart in the morning....lol

thanks

on my 02 explorer , use a mirror and check under the blower motor , it is held in with 2 screws and will be the hardest job you can imagine. mine stayed on low speed until high and then worked on high. i did it my self 'cause ford wanted $130.00 to inst. a $17.00 part..good luck..Jack

Actually ...this morning I pulled the battery and battery tray and got to the resistor pack.

Everything seems fine with the resistors.... All contacts were corroded and the studs thatthe resistors mount on...and the resistor leads themselves are corroded a little...

Cleaned on these connections for a while then had to slap it all back together.

I got sent on a call and had to toss everything back together...didnt get back to the shop till late in the a noon....

Went out there tonight and pulled the radio then got the plug off the fan switch. The fan switch and connector have melted.

I did a little checking with my meter and a jumper wire and ended up jumping out the common ground to the med high speed wire.... they are all grounds....evidently ford uses a single speed motor and the resistors in series with the ground thru the switch....control motor speed.

I wire nutted the wires together and then just sat out in the van for about 30 minutes...cleaning the cab...looking thru some of my books and papers....all the while feeling the connection to see if it was getting hot.

It got warm....but no warmer than a would think a factory wire and connection would get pulling those fan amps.

Anyone got an easy way to get the switch itself out ??? Just getting the connector out almost needed three hands...but I finaly got it..... Used a mirror and flashlight to try and see how the switch is mounted but I cant see anything....anything usefull... tried pulling it out and it wont come.....

Im fine with my fix for now....but Im going to have to replace that switch....

I had to replace my switch this on my 98 E-250. Pretty easy. Just pulled the cover and changed it in autozones parking lot. Came apart easy because I caught the small fire while I was driving and shut it off. It is scary when you see smoke coming from behind you dash.